A rectangular lawn is 40 feet by 50 feet. How wide a uniform strip has been mowed around the edge if 3/10 of the lawn has not yet been mowed?

Step-by-step explanation:

First lest us calculate the area of the rectangle

given that

length= 50ft

width= 40 ft

Area = length *width

Area=  50*40

Areaa= 2000 ft^2

given that 3/10 of the lawn is yet to be mowed

(3/10)*2000

0.3*2000= 600ft^2

Therefore the area that has been mowed is 2000-600= 1400 ft^2

1400 ft^2

since the direction of the mower is along the lenght of the lawn

area= lenght*width

1400= 50*width

width= 1400/50

width= 28 ft

step-by-step explanation:

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1. 3

2. 4

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hope this ! have a great day.

-wfz